Kaoru (temporary name) is 40 years old, a divorced mother of two who works as a snack hostess. She married her high school classmate just two days after graduation and had children, but divorced due to her husband's infidelity. The hostess work she began out of necessity turned out to suit her, so she continued. She fell in love at first sight with a beautiful-faced customer, beginning a relationship and cohabitation, only to discover the person was actually a woman. After seven years together, the relationship ended when her partner left her for a younger woman. Leaving behind the place filled with memories, she attempts a fresh start, but spends a whole year without a boyfriend or sex. One day, she murmurs, "I really want to drink my fill tonight," surrendering herself to intoxication and unleashing her pent-up desires in a wild, uninhibited frenzy. Her mature body drowns helplessly in a whirlpool of pleasure.